http301-redirect-syntax.md

301 Redirects

"I recommend that you always 301 redirect any url if you remove that page to make sure that you never lose any link power. If you moved the page then you should redirect the old url to the new location. If you removed the page completely then it is usually best to redirect the URL to index or to the main page in the relevant section. Doing this can dramatically improve your rankings."

http://www.collylogic.com/301-redirects/

Apache httpd mod_rewrite .htaccess configure sub-domain "www" for new host

Options +FollowSymlinks
RewriteEngine on
rewritecond %{http_host} ^domain.com [nc]
rewriterule ^(.*)$ http://www.domain.com/$1 [r=301,nc]

Apache httpd mod_rewrite .htaccess setup entirely new second-level domain name

Options +FollowSymLinks
RewriteEngine on
RewriteRule (.*) http://www.newdomain.com/$1 [R=301,L]

PHP Redirect

<?
Header( "HTTP/1.1 301 Moved Permanently" );
Header( "Location: http://www.host.dom" );
?>

JSP (Java) Redirect

<%
response.setStatus(301); response.setHeader( "Location", "http://www.host.dom/" ); response.setHeader( "Connection", "close" ); %>

Classic ASP Redirect

<%@ Language=VBScript %>
<%
Response.Status="301 Moved Permanently"
Response.AddHeader "Location","http://www.host.dom/"
%>

ASP.NET Redirect

<script runat="server">
private void Page_Load(object sender, System.EventArgs e)
{
Response.Status = "301 Moved Permanently";
Response.AddHeader("Location","http://www.host.dom");
}
</script>

ColdFusion Redirect

<.cfheader statuscode="301" statustext="Moved permanently">
<.cfheader name="Location" value="http://www.host.dom">

Ruby on Rails Redirect

headers["Status"] = "301 Moved Permanently"
redirect_to "http://www.host.dom/"
end

Perl CGI Redirect

$q = new CGI;
print $q->redirect("http://www.host.dom/");